package com.zh.common.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.beanutils.BeanUtils;

import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.Map;


/**
 * 自定义响应结构
 */
public class JsonsUtils {

    // 定义jackson对象
    private static final ObjectMapper MAPPER = new ObjectMapper();

    /**
     * 将对象转换成json字符串。
     * <p>Title: pojoToJson</p>
     * <p>Description: </p>
     * @param data
     * @return
     */
    public static String objectToJson(Object data) {
    	try {
			String string = MAPPER.writeValueAsString(data);
			return string;
		} catch (JsonProcessingException e) {
			e.printStackTrace();
		}
    	return null;
    }
    
    /**
     * 将json结果集转化为对象
     * 
     * @param jsonData json数据
     * @param clazz 对象中的object类型
     * @return
     */
    public static <T> T jsonToPojo(String jsonData, Class<T> beanType) {
        try {
            T t = MAPPER.readValue(jsonData, beanType);
            return t;
        } catch (Exception e) {
        	e.printStackTrace();
        }
        return null;
    }
    
    /**
     * 将json数据转换成pojo对象list
     * <p>Title: jsonToList</p>
     * <p>Description: </p>
     * @param jsonData
     * @param beanType
     * @return
     */
    public static <T>List<T> jsonToList(String jsonData, Class<T> beanType) {
    	JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType);
    	try {
    		List<T> list = MAPPER.readValue(jsonData, javaType);
    		return list;
		} catch (Exception e) {
			e.printStackTrace();
		}
    	
    	return null;
    }
    
    
    public static <T> T map2Bean(Map<String, String> map, Class<T> class1) {  
        T bean = null;  
        try {  
            bean = class1.newInstance();  
            BeanUtils.populate(bean, map);
        } catch (InstantiationException e) {  
            e.printStackTrace();  
        } catch (IllegalAccessException e) {  
            e.printStackTrace();  
        } catch (InvocationTargetException e) {  
            e.printStackTrace();  
        }  
        return bean;  
    }
    
    public static String map2Json(Object object){
    	String jsonText = JSON.toJSONString(object);
		return jsonText;	
    }


    /**
     * 将json转成map
     *
     * @param jsonString 被转的json
     * @return 返回map
     */
    public static Map<String, Object> jsonToMap(String jsonString) {
        try {
            return MAPPER.readValue(jsonString, Map.class);
        } catch (Exception e) {

        }
        return null;
    }


    
}
